After completing this lecture, the workshop and your own reading you should be able to …
“All models are wrong, but some are useful.” – George Box
… are approximations of reality by reducing the complexity.
Rube-Goldberg machine: a machine intentionally designed to perform a simple task in an overly complicated way.
– aka the “bell curve”
Aside: standard normal distribution is mean = 0 and SD = 1
| Country | mean IQ |
|---|---|
| Hong Kong | 107 |
| Korea South | 106 |
| Japan | 105 |
| Taiwan | 104 |
| Singapore | 103 |
| Austria | 102 |
| Germany | 102 |
| Italy | 102 |
| Country | mean IQ |
|---|---|
| Hong Kong | 107 |
| Korea South | 106 |
| Japan | 105 |
| Taiwan | 104 |
| Singapore | 103 |
| Austria | 102 |
| Germany | 102 |
| Italy | 102 |
| Country | mean IQ |
|---|---|
| Ethiopia | 63 |
| Sierra Leone | 64 |
| Congo Zaire | 65 |
| Guinea | 66 |
| Zimbabwe | 66 |
| Nigeria | 67 |
| Ghana | 71 |
| Jamaica | 72 |
Source: Robinson (2018)
[1] 1 2 3 4 5
[1] 5 3 2 5 4 2 1 4 3 1 5 4 5 5 2 4 1 2 4 2 2 5
[1] 5 5 3 5 1 4 1 4 1 5 2 2 2 3 4 2 2 2 1 1 3 2
[1] 3.227273
[1] 2.727273
Baguley, T. (2012). Serious stats: A guide to advanced statistics for the behavioral sciences. Macmillan International Higher Education.
Bürkner, P.-C., & Vuorre, M. (2019). Ordinal regression models in psychology: A tutorial. Advances in Methods and Practices in Psychological Science, 2(1), 77–101.
Coolican, H. (2018). Research methods and statistics in psychology. Routledge.
Field, A., Miles, J., & Field, Z. (2012). Discovering statistics using R. Sage publications.
Gill, J. (2014). Bayesian methods: A social and behavioral sciences approach (Vol. 20). CRC press.
Howitt, D., & Cramer, D. (2014). Introduction to statistics in psychology (6th ed.). Pearson Education.
Liddell, T. M., & Kruschke, J. K. (2018). Analyzing ordinal data with metric models: What could possibly go wrong? Journal of Experimental Social Psychology, 79, 328–348.
Lynn, R., & Vanhanen, T. (2001). National IQ and economic development: A study of eighty-one nations. Mankind Quarterly, 41(4), 415–435.
Matloff, N. (2019). Probability and statistics for data science: Math + R + data. CRC Press.
Radloff, L. S. (1977). The CES-D scale: A self-report depression scale for research in the general population. Applied Psychological Measurement, 1(3), 385–401.
Robinson, M. A. (2018). Using multi-item psychometric scales for research and practice in human resource management. Human Resource Management, 57(3), 739–750.